I bet you we will be closer to $17.50 than $7.50. Best thing possible would be to dump the whole amount for like $11.50. That would set the floor in the stock to keep the upward movement.
I don't believe we need the money yesterday, so in the event its executed, I suspect the discount would be closer to 5% than your 40% prediction.
I do like how even you are increasing your predictions as time goes on. Originally you would say we were dropping back to $5.00 now you are up to $7.50, while the stock continues to climb. I cannot wait until you are saying "$12.13 tomorrow"; at that point we will be mid 18's.